mirror of
https://github.com/edgelesssys/constellation.git
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0edae36e43
* Mini Constellation commands to quickly deploy a local Constellation cluster * Download libvirt container image if not present locally * Fix libvirt KVM permission issues by creating kvm group using host GID inside container * Remove QEMU specific values from state file Signed-off-by: Daniel Weiße <dw@edgeless.systems> Co-authored-by: Nils Hanke <nils.hanke@outlook.com>
93 lines
2.3 KiB
Go
93 lines
2.3 KiB
Go
/*
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Copyright (c) Edgeless Systems GmbH
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SPDX-License-Identifier: AGPL-3.0-only
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*/
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package cmd
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import (
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"context"
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"fmt"
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"os"
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"os/signal"
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"github.com/edgelesssys/constellation/v2/cli/internal/cmd"
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"github.com/edgelesssys/constellation/v2/internal/constants"
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"github.com/spf13/cobra"
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)
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// Execute starts the CLI.
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func Execute() error {
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cobra.EnableCommandSorting = false
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rootCmd := NewRootCmd()
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ctx, cancel := signalContext(context.Background(), os.Interrupt)
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defer cancel()
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return rootCmd.ExecuteContext(ctx)
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}
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// NewRootCmd creates the root command.
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func NewRootCmd() *cobra.Command {
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rootCmd := &cobra.Command{
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Use: "constellation",
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Short: "Manage your Constellation cluster",
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Long: "Manage your Constellation cluster.",
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PersistentPreRun: preRunRoot,
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}
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// Set output of cmd.Print to stdout. (By default, it's stderr.)
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rootCmd.SetOut(os.Stdout)
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rootCmd.PersistentFlags().String("config", constants.ConfigFilename, "path to the configuration file")
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must(rootCmd.MarkPersistentFlagFilename("config", "json"))
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rootCmd.AddCommand(cmd.NewConfigCmd())
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rootCmd.AddCommand(cmd.NewCreateCmd())
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rootCmd.AddCommand(cmd.NewInitCmd())
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rootCmd.AddCommand(cmd.NewMiniCmd())
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rootCmd.AddCommand(cmd.NewVerifyCmd())
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rootCmd.AddCommand(cmd.NewUpgradeCmd())
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rootCmd.AddCommand(cmd.NewRecoverCmd())
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rootCmd.AddCommand(cmd.NewTerminateCmd())
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rootCmd.AddCommand(cmd.NewVersionCmd())
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return rootCmd
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}
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// signalContext returns a context that is canceled on the handed signal.
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// The signal isn't watched after its first occurrence. Call the cancel
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// function to ensure the internal goroutine is stopped and the signal isn't
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// watched any longer.
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func signalContext(ctx context.Context, sig os.Signal) (context.Context, context.CancelFunc) {
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sigCtx, stop := signal.NotifyContext(ctx, sig)
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done := make(chan struct{}, 1)
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stopDone := make(chan struct{}, 1)
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go func() {
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defer func() { stopDone <- struct{}{} }()
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defer stop()
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select {
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case <-sigCtx.Done():
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fmt.Println(" Signal caught. Press ctrl+c again to terminate the program immediately.")
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case <-done:
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}
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}()
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cancelFunc := func() {
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done <- struct{}{}
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<-stopDone
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}
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return sigCtx, cancelFunc
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}
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func preRunRoot(cmd *cobra.Command, args []string) {
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cmd.SilenceUsage = true
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}
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func must(err error) {
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if err != nil {
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panic(err)
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}
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}
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